manifest.json

{
    "name": "uhhhhh",
    "version": "1.0",
    "description": "oop idk", 
    "permissions": ["tabs","activeTab","declarativeContent", "storage", "tabCapture"],
    "background": {
        "scripts": ["background.js"],
        "persistent": false
    },
    "page_action": {
        "default_popup": "popup.html", // need to make small ui... probably just box, text + button
        // we could make like an on/off button on popup
        // smart but we have to switch to browser action instead of page action i think which should
        // be fine except google removed the documentation on that lol
        // bruh
        "default_icon": {
            "icon" : "icon.png" // icon that appears next to address bar
        }
    },
    "content_scripts": [
    {
      "matches": ["<all_urls>"],
      "css": [""],
      "js": [""]
    }],
    "manifest_version": 2
}